Embroidery-machine.



R. ZAHN. v, EMBROIDERY MACHINE.

APPLICATION FILED MAR. 11, 1911.

Patented Jan. 30, 1912,

N I a III:

UNITED STATES PATENT OFFICE.

ROBERT ZAHN, OF PLAIIEN, GERMANY.

EMBROIDERY-MACHINE.

Specification of Letters Patent Application filed March 11, 1911. Serial No. 613,856.

the motion of the portions of the frame remote from the point where the pantograph or the jacquard mechanism is attached, are not the same in direction or extent as those of the part of the frame adjacentto the point of attachment of the pantograph or jacquard mechanism, in consequence of which the embroidery often shows faults.

The object of my invention is to obviate these drawbacks and to provide means whereby the up and down movement of the long frame will be absolutely uniform and forcible upon its entire length.

One embodiment of my invention is illustrated in the accompanying drawing which forms a part of this specification.

In well known manner, the fabric frame 1 is properly suspended by means of rollers 2 from'angular levers 3, 4 suitably connected together as by means of a rod 5 orthe like and of which one, as 3 carries a counterweight 6, whereby the frame is balanced. Arranged at one end 'and at several inter mediate. points" in the direction of the length of theframe are the supporting pins 7, 8, 9. In the present example two intermediate supporting pins are shown. Engaging with these pins are the horizontal loops 10, 11 and 12 carried by the vertical slides 13, 14, 15 respectively. The slides are each provided with 'a lat'eralrack, as 13", 14', 15' respectively, which arein meshing connection with'pini'on's 16, 17', 18 respectively. These pinions, which are ournaled 1n brackets fixed in the frame 19 .of the machine are simultaneously in meshing connection with a common rack 20 extending longitudinally of the fabric frame.

The transmission of motion to the fabric frame is effected at the point 21 from the jacquard mechanism J in well known man ner, as for instance, in the manner shown and described in my prior application, 542,305, filed February 5, 1910.

It will be seen, that the vertical motion Patented Jan. 30,1912. I

of the slide 13 received from the jacquard mechanism will impart rotation to the pinion 16, which through the common longitudinal rack 20 will be simultaneously transmitted to the other pinions 17, 18; From these pinions, the intermediate. vertical slides- 14, 15 will receive 'avertical motion that will perfectly correspond to that of the slide 13.

What I claim and desire tosecure by Letters Patent is:

1. In embroidery machines, the combination w h the fabric frame, of a plurality of supporting members on said frame arranged longitudinally thereof, a number of vertically slidable toothed guiding members engaging the said supporting members, a gear for each guiding member meshing with the teeth thereof and a common rack simultaneously meshing with all said gears.

2. In embroidering machines, the combination, with a fabric frame, of a plurality of supporting pins on said frame arranged longitudinally thereof, a number of vertically slidable looped guiding members formed with lateral racks and engaging the said supporting pins, a gear for each guiding member meshing with the rack thereof and a common rack simultaneously meshing with all said gears.

In testimony whereof I aflix. my signature in.presence of two witnesses.

ROBERT ZAHN.

Witnesses.

LoUIs Konnnn, Lours DURANT EDWARDS. 

